AIIMS 2018 Physics Logic Gates MCQ Question

In an OR gate, the output is true (1) if at least one of the inputs A or B is true (1). Therefore, if both inputs are true (1), the output will also be true (1), which corresponds to option D, indicating that the output is A + B = 1 + 1 = 1. Options A, B, and C may represent incorrect interpretations of the OR gate's function, such as assuming both inputs must be false (0) for a true output or miscalculating the logical addition. Understanding the OR gate's operation is essential for grasping digital logic principles.